Pagan Calendar shows events from pagancalendar.co.uk on your phone. Events include equinoxes, solstices, planetary ingresses etc. Clicking on an event gives you the event information.
You can select your timezone from the settings, adjusting times for events with times, such as the summer solstice.
There is a pro version of the app in-case you wan…
PaganPlanner contains some information useful to planning when to do a ritual. It has moon phase, planetary positions and dates of sabbats. There is a widget showing how many days until the next few sabbats. Contact: firstname.lastname@example.org